HD 181342 b

A confirmed exoplanet orbiting HD 181342.

Compared with Earth

Mass
About 807 times Earth's mass.
Year
A year here lasts about 1.5 Earth years.

Planet

Radius
Unknown
Mass
807.3 × Earth
Density
Unknown
Equilibrium temperature
Unknown
Starlight received
Unknown
Orbital period
564.1 days
Average distance from its star
1.592 AU

Star

Host star
HD 181342
Spectral class
K — orange dwarf
Surface temperature
4,945 K
Radius
4.71 × Sun
Mass
1.69 × Sun
Age
Unknown

System

Distance from Earth
392.7 light-years (120.4 parsecs)
Stars in system
1
Known planets
1

Discovery

Year
2009
Method
Radial Velocity
Facility
W. M. Keck Observatory

Data from the NASA Exoplanet Archive, synced October 14, 2026.